4477431616 has 56 divisors (see below), whose sum is σ = 10176394176. Its totient is φ = 1914700800.

The previous prime is 4477431611. The next prime is 4477431619. The reversal of 4477431616 is 6161347744.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4477431611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198516 + ... + 219916.

Almost surely, 2^4477431616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4477431616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5088197088).

4477431616 is an abundant number, since it is smaller than the sum of its proper divisors (5698962560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4477431616 is a wasteful number, since it uses less digits than its factorization.

4477431616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21887 (or 21877 counting only the distinct ones).

The product of its digits is 338688, while the sum is 43.

The square root of 4477431616 is about 66913.6130843343. The cubic root of 4477431616 is about 1648.1990286535.

The spelling of 4477431616 in words is "four billion, four hundred seventy-seven million, four hundred thirty-one thousand, six hundred sixteen".